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NI Multisim (formerly MultiSIM) is an electronic schematic capture and simulation program which is part of a suite of circuit design programs, [1] along with NI Ultiboard. Multisim is one of the few circuit design programs to employ the original Berkeley SPICE based software simulation. [ 2 ]
NI Ultiboard, formerly ULTIboard, is an electronic printed circuit board (PCB) layout program which is part of a suite of circuit design programs, along with NI Multisim. One of its major features is the real time design rule check , a feature that was only offered on expensive work stations in the days when it was introduced.
Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signaling of digital data.. The basic principle of CML is that current from a constant current generator is steered between two alternate paths depending on whether a logic zero or logic one is being represented.
The magnitude of the output voltage is a property of the operational amplifier and its power supply. Applications include converting an analog signal into a form suitable for frequency measurements, in phase locked loops, or controlling power electronics circuits that must switch with a defined relationship to an alternating current waveform.
In most cases a comparator is implemented using a dedicated comparator IC, but op-amps may be used as an alternative. Comparator diagrams and op-amp diagrams use the same symbols. A simple comparator circuit made using an op-amp without feedback simply heavily amplifies the voltage difference between Vin and VREF and outputs the result as Vout.
Typically designs from 4-bit up to 6-bit and sometimes 7-bit are produced. Designs with power-saving capacitive reference ladders have been demonstrated. In addition to clocking the comparator(s), these systems also sample the reference value on the input stage. As the sampling is done at a very high rate, the leakage of the capacitors is ...
2 dual 4-bit buffer/driver, one inverted, one non-inverted; negative enable three-state: 20 SN74AS230: 74x231 2 dual 4-bit buffer/driver, both inverted; one positive and one negative enable three-state: 20 SN74AS231: 74x232 1 64-bit FIFO memory (16x4), asynchronous three-state: 16 SN74ALS232B: 74x233 1 80-bit FIFO memory (16x5), asynchronous ...
window detector circuit diagram. A window detector circuit, also called window comparator circuit or dual edge limit detector circuits is used to determine whether an unknown input is between two precise reference threshold voltages. [1] It employs two comparators to detect over-voltage or under-voltage. [2]